Operation Guide 3425
MO1310-EA © 2013 CASIO COMPUTER CO., LTD.
E-1
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
The electricity generated by the solar panel of the watch is
stored by a rechargeable battery. Leaving or using the
watch where it is not exposed to light causes the battery
to run down. Make sure the watch is exposed to light as
much as possible.
•When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.
•You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is covered only partially.
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Bright Light
Solar panel
E-2
All
functions
enabled
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Charge
Rechargeable battery
Bright Light
Electrical
energy
Solar panel
(Converts light to
electrical power.)
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
Dis-
charge
Battery charges in the light. Battery discharges in the dark.
•The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
E-3
•The actual level at which some functions are disabled depends on the watch model.
•Be sure to read “Power Supply” (page E-40) for important information you
need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
•See “Power Saving Function” (page E-53) for more information.
E-4
About This Manual
•Button operations are indicated using the letters shown in the illustration.
•Each section of this manual provides you with the information you need to perform
operations in each mode. Further details and technical information can be found in
the “Reference” section.
E-5
Contents
General Guide ......................................................................................................... E-8
Timekeeping .......................................................................................................... E-11
Stopwatch .............................................................................................................. E-17
Recall Mode ........................................................................................................... E-22
Countdown Timer .................................................................................................. E-26
World Time ............................................................................................................. E-30
Alarms .................................................................................................................... E-33
Illumination ............................................................................................................ E-38
Power Supply ........................................................................................................ E-40
Reference .............................................................................................................. E-48
Specifications ....................................................................................................... E-57
E-6
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To exit the demo mode ......................................................................................... E-10
To set the time and date ....................................................................................... E-12
To change the Daylight Saving Time (summer time) setting ............................ E-16
To measure times with the stopwatch ................................................................ E-18
To position the lap time and split time on the display ...................................... E-20
To recall stopwatch records ................................................................................ E-22
To delete a log ....................................................................................................... E-24
To delete all logs ................................................................................................... E-25
To configure the countdown timer ...................................................................... E-27
To use the countdown timer ................................................................................ E-29
E-7
To view the time in another city ........................................................................... E-31
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-32
To set an alarm time ............................................................................................. E-34
To test the alarm ................................................................................................... E-35
To turn an alarm on and off .................................................................................. E-36
To turn the Hourly Time Signal on and off .......................................................... E-37
To illuminate the display manually ...................................................................... E-38
To specify the illumination duration ................................................................... E-39
To turn the button operation tone on and off ..................................................... E-52
To recover from the sleep state ........................................................................... E-54
To turn Power Saving on and off ......................................................................... E-54
E-8
General Guide
•Press C to change from mode to mode.
•In any mode, press L to illuminate the display.
Timekeeping Mode
C
Stopwatch Mode
C
▲
▲
E-9
Countdown Timer Mode
Alarm Mode World Time Mode
Recall Mode
CC
C
C
▲
▲
▲
▲
Operation Guide 3425
E-10
Demo Mode
In the Timekeeping Mode, holding down C for about three seconds will enter the
demo mode. In the demo mode, the screen cycles through the normal timekeeping,
stopwatch, and World Time screens in five-second intervals.
To exit the demo mode
Press any button.
E-11
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of which represents the time
zone where that city is located. When setting the time, it is important that you first
select the correct city code for your Home City (the city where you normally use the
watch). If your location is not included in the preset city codes, select the preset city
code that is in the same time zone as your location.
•
Note that all of the times for the World Time Mode city codes (page E-30) are displayed
in accordance with the time and date settings you configure in the Timekeeping Mode.
Hour : Minutes
Seconds
Day of week
Year – Month – Day
PM indicator
E-12
To set the time and date
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D and B to select the city code you want.
•Make sure you select your Home City code before
changing any other setting.
•For full information on city codes, see the “City Code
Table” at the back of this manual.
3. Press C to move the flashing in the sequence shown below to select the other
settings.
Seconds
12/24-Hour
Format Hour Minutes
DST
Month Year
City Code
DayPower Saving Illumination
Duration
Button
Operation Tone
E-13
•The following steps explain how to configure timekeeping settings only.
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Change the city code
Toggle between Daylight Saving Time ( )
and Standard Time ( )
Toggle between 12-hour ( ) and 24-
hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
Use D (east) and B
(west).
Press D.
Press D.
Press D.
Use D (+) and B (–).
Screen: To do this: Do this:
E-14
5. Press A to exit the setting screen.
•The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
Screen: To do this: Do this:
Change the year, month, or day
Toggle the button operation tone between
(on) and (off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on ( ) and
off ( )
Use D (+) and B (–).
Press D.
Press D.
Press D.
/
E-15
12-hour and 24-hour timekeeping
•With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits for times in the range of midnight to 11:59 a.m.
•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
E-16
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C and the DST setting screen appears.
3. Use D to cycle through the DST settings in the
sequence shown below.
D
4. When the setting you want is selected, press A to exit
the setting screen.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
DST indicator
E-17
Stopwatch
The 1/100-second stopwatch can measure elapsed time
and lap/split times. Stopwatch times are stored in memory.
•The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
•Exiting the Stopwatch Mode while a lap/split time is
frozen on the display clears the lap/split time and returns
to elapsed time measurement.
•All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-8).
Note
•See page E-50 for information about the type of data the
watch stores in memory when you use the stopwatch.
•Use the Recall Mode (page E-22) to view data stored in
memory.
Split time
Remaining memory
Lap time
Graphic Area
E-18
To measure times with the stopwatch
Lap/Split indicator
Lap time
Lap/Split indicator
Split time
➤➤➤➤
Reset
Next Lap/
Split
➤
D
Start Stop
Elapsed Time
Resume Reset
B
Stop
DBB
Lap/Split Times
D
Start Lap/Split
D
Stop
DB➤B
➤➤
E-19
Note
•Pressing D to perform a lap/split time operation freezes the lap/split time at that
point on the display for about eight seconds. After that, the display returns to normal
stopwatch time measurement.
•During a stopwatch time measurement operation, the current lap/split number is
shown at the top of the display, and the lap time and split time are shown in the
middle and at the bottom. You can change the positions of the lap time and split time
by pressing A while a stopwatch operation is in progress or stopped. For details,
refer to “To position the lap time and split time on the display” (page E-20).
Operation Guide 3425
E-20
To position the lap time and split time on the display
Each press of A cycles the lap time and split time positions in the sequence shown
below.
•You can perform the above operation while stopwatch operation is ongoing or
stopped.
Split time
Split time
Remaining memory
Lap time Graphic Area
➤➤➤
AAA
A
Lap time
Lap time
Hours Seconds
Minutes
Hours Seconds
Minutes
Split time
➤
E-21
•A graphic animation plays on the display while a stopwatch timing operation is being
performed. You can toggle the animation on and off by holding down A while the
stopwatch is reset to all zeros.
More than 10 hours
•Whenever the elapsed time exceeds 10 hours, the measurement changes from
1/100-second units to 1-second units.
E-22
Recall Mode
Use the Recall Mode to recall and delete records stored
by the Stopwatch Mode.
•Stopwatch records are stored in “logs” that are created
automatically by the watch. See “Memory Management”
on page E-48 for more information.
•The title screen of the newest log appears first whenever
you enter the Recall Mode.
•Log numbers are automatically assigned in sequence,
starting from 01.
•All of the operations in this section are performed in the
Recall Mode, which you enter by pressing C (page E-9).
To recall stopwatch records
In the Recall Mode, use A to scroll through the log title
screens, starting from the newest one, as shown below.
When the title screen of the log you want is displayed, use
D (+) and B (–) to cycle through the records contained in
the log.
Log number
Creation date
(Month – Day)
Log Title Screen
Time measurement
was performed
E-23
D
Split time
Lap/Split number BEST indicator
A
Log Title Screen
Stopwatch Record
Screen
Best Lap Time
Screen
Lap time
▲
▲
▲
▲
▲
B
▲
D
B
D
B
▲
▲
A
E-24
•The locations of the lap time and split time in the Stopwatch Record screen are
determined by the display format you last selected in the Stopwatch Mode (page
E-17).
•The BEST indicator identifies the record that contains the best lap time in the log.
•If a best lap time record is deleted automatically when the log becomes full, the
BEST indicator will not be transferred to the record with the next best lap time. See
“Memory Management” on page E-48 for more information about automatic deletion
of records.
To delete a log
1. In the Recall Mode, display the title screen or one of the records of the log you want
to delete.
2. While holding down B, hold down D for about two seconds until the watch beeps.
•“CLR” will flash on the display for two seconds and then the watch will beep.
Release B and D at this time.
•You cannot delete the log of an ongoing elapsed time measurement operation.
E-25
To delete all logs
While holding down B, hold down D for about five seconds until the watch beeps
once and then a second time.
•“CLR” will flash on the display for two seconds and then the watch will beep once.
Keep B and D depressed and “ALL” will flash on the display for three seconds,
and then the watch will beep again. This indicates that all log data is cleared.
•You cannot delete logs while an elapsed timing operation is in progress.
E-26
Countdown Timer
Dual timers can be set with two different starting times.
The watch can be configured so the two timers alternate,
so when one reaches the end of its countdown, the other
timer starts. You can specify a “number of repeats” value,
which controls how many times the two-timer countdown
operation is performed (1 = once, 2 = twice, etc.). The
starting time of each timer can be set in five-second steps
up to 99 minutes, 55 seconds.
You can specify up to 10 repeats. The watch emits a short
beep whenever either of the timers reaches the end of its
countdown during an ongoing timer operation. The watch
emits a 5-second beep when the end of the final timer
operation (specified by the number of repeats) is reached.
Countdown End Beeper
The countdown end beeper lets you know when the countdown reaches zero. The
beeper stops after about 5 seconds or when you press any button.
Seconds
Minutes Timer 1
Number of Repeats
E-27
To configure the countdown timer
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until the current
countdown start time starts to flash, which indicates the
setting screen.
•If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” (page
E-29) to display it.
2. Press C to move the flashing in the sequence shown
below to select other settings.
Timer 1
Minutes
Timer 1
Seconds
Timer 2
Seconds
Timer 2
Minutes
Number of Repeats
E-28
•To disable either timer, set 00'00" as its countdown start time.
4. Press A to exit the setting screen.
Button Operation
Use D (+) and B (–) to change the setting.
Use D (+) and B (–) to change the setting.
Setting
Minutes, Seconds
Number of Repeats
Screen
3. When the setting you want to change is flashing, use D and B to change it as
described below.
E-29
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
•The countdown is performed by alternating between Timer 1 and Timer 2. A short
beep is emitted to signal a changeover from one timer to the other.
•Press D to pause a countdown. Press D again to resume.
•Pressing B while a countdown timer is stopped resets it to the start time specified
by you.
•The watch emits a 5-second beep when the end of the final timer operation
(specified by the number of repeats) is reached.
•Even if you exit the Countdown Timer Mode, the countdown timer operation
continues and the watch beeps as required.
Current timer time
Preset number of repeatsCurrent repeat count
Current time
Timer 1 or 2
(Reset)
(Start/Stop)
Operation Guide 3425
E-30
World Time
World Time shows the current time in 48 cities (31 time
zones) around the world.
•The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check to make sure you
have the correct city selected as your Home City. Also
check to make sure that the current time as shown in
the Timekeeping Mode is correct.
•Select a city code in the World Time Mode to display the
current time in any particular time zone around the
globe. See the “City Code Table” at the back of this
manual for information about the UTC differential
settings that are supported.
•All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C
(page E-9).
Current time in
selected city
City code
E-31
To view the time in another city
While in the World Time Mode, use D (eastward) and B (westward) to scroll through
the city codes (time zones).
•Pressing D and B at the same time will jump to the UTC time zone.
E-32
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D and B to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down A to toggle between Daylight Saving Time
(DST indicator displayed) and Standard Time (DST
indicator not displayed).
•The DST indicator is shown on the World Time Mode
screen while Daylight Saving Time is turned on.
•Note that the Standard Time/Daylight Saving Time
setting affects only the currently displayed city code.
Other city codes are not affected.
•Note that you cannot switch between Standard Time
and Daylight Saving Time while UTC is selected as the
city code.
DST indicator
E-33
Alarms
The Alarm Mode gives you a choice of five daily alarms,
one of which is a snooze alarm.
Also use the Alarm Mode to turn the Hourly Time Signal
(SIG) on and off.
•The snooze alarm screen is indicated by SNZ, while
the other alarm screens are numbered AL1 through
AL4. The Hourly Time Signal screen is indicated by
SIG.
•All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C (page
E-9).
Alarm number
Alarm time
(Hour : Minutes)
E-34
To set an alarm time
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
•To set an alarm time, display the applicable alarm
screen (AL1 through AL4, or SNZ).
•The snooze alarm operation repeats every five
minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash, which indicates the setting screen.
•This operation turns on the alarm automatically.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
•With the 12-hour format, set the time correctly as a.m. or p.m. (P indicator).
5. Press A to exit the setting screen.
E-35
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the
watch is in. In the case of the snooze alarm, the alarm operation is performed a total
of seven times, every five minutes, until you turn the alarm off (page E-36).
•Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode time.
•To stop the alarm tone after it starts to sound, press any button.
•Performing any one of the operations below during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen (page E-12)
Displaying the
SNZ
setting screen (page E-34)
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
E-36
To turn an alarm on and off
1. In the Alarm Mode, use D to select an alarm.
2. Press B to toggle it on and off.
•Turning on a alarm (AL1,AL2,AL3,AL4 or
SNZ) displays the alarm on indicator on its Alarm Mode
screen.
•In all modes, the alarm on indicator is shown for any
alarm that currently is turned on.
•The alarm on indicator flashes while the alarm is
sounding.
•The snooze alarm indicator flashes while the snooze
alarm is sounding and during the 5-minute intervals
between alarms.
Alarm on indicator
Alarm on/off
: Alarm on
: Alarm off
Snooze alarm
indicator
E-37
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use D to select the Hourly Time
Signal (SIG).
2. Press B to toggle it on and off.
•The Hourly Time Signal on indicator is shown on the
display in all modes while this function is turned on.
Hourly time signal
on indicator
E-38
Illumination
A LED (light-emitting diode) illuminate the display for easy
reading in the dark.
Illumination Precautions
•The illumination provided by the light may be hard to see
when viewed under direct sunlight.
•Illumination automatically turns off whenever an alarm
sounds.
•Frequent use of illumination runs down the battery.
To illuminate the display manually
In any mode, press L to turn on illumination.
•You can use the procedure below to select either 1.5 seconds or 3 seconds as the
illumination duration. When you press L, the illumination will remain on for about
1.5 seconds or 3 seconds, depending on the current illumination duration setting.
E-39
To specify the illumination duration
1. In the Timekeeping Mode, hold down A until the
display contents start to flash. This is the setting screen.
2. Press C 10 times until the current illumination duration
setting ( or ) appears.
3. Press D to toggle the setting between
(approximately 1.5 seconds) and (approximately
3 seconds).
4. Press A to exit the setting screen.
Operation Guide 3425
E-40
Power Supply
This watch is equipped with a solar panel and a rechargeable battery that is charged
by the electrical power produced by the solar panel. The illustration shown below
shows how you should position the watch for charging.
Example: Orient the watch so its face is
pointing at a light source.
•The illustration shows how to position a
watch with a resin band.
•Note that charging efficiency drops when
any part of the solar panel is blocked by
clothing, etc.
•You should try to keep the watch outside of
your sleeve as much as possible. Charging
is reduced significantly if the face is
covered only partially.
Solar panel
E-41
Important!
•Storing the watch for long periods in an area where there is no light or wearing it in
such a way that it is blocked from exposure to light can cause rechargeable battery
power to run down. Be sure that the watch is exposed to bright light whenever
possible.
•This watch uses a rechargeable battery to store power produced by the solar panel,
so regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the rechargeable battery to charge fully, contact your dealer or
CASIO distributor about having it replaced.
•Never try to remove or replace the watch’s rechargeable battery yourself. Use of the
wrong type of battery can damage the watch.
•All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 5 (pages
E-42 and E-43) and when you have the battery replaced.
•Turn on the watch’s Power Saving function (page E-53) and keep it in an area
normally exposed to bright light when storing it for long periods. This helps to keep
the rechargeable battery from going dead.
E-42
Level
1
2
3
4
5
Battery Power Indicator Function Status
All functions enabled.
All functions enabled.
Illumination, and beeper
disabled.
Except for timekeeping and
the CHG (charge) indicator,
all functions and display
indicators disabled.
All functions disabled.
Battery Power Indicator and Recover Indicator
The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.
Battery power
indicator
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E-43
•The flashing L and LOW indicators at level 3 tell you that battery power is very low,
and that exposure to bright light for charging is required as soon as possible.
•At Level 5, all functions are disabled and settings return to their initial factory
defaults. Once the battery reaches Level 2 after falling to Level 5, reconfigure the
current time, date, and other settings.
•The watch’s Home City code setting will change automatically to TYO (Tokyo)
whenever the battery drops to Level 5.
•
Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.
•Leaving the watch exposed to direct sunlight or some other very strong light source
can cause the battery power indicator to show a reading temporarily that is higher
than the actual battery level. The correct battery level should be indicated after a few
minutes.
E-44
•Performing illumination, or beeper operations during a
short period may cause (recover) to appear on the
display.
After some time, battery power will recover and
(recover) will disappear, indicating that the above
functions are enabled again.
•If (recover) appears frequently, it probably means
that remaining battery power is low. Leave the watch in
bright light to allow it to charge.
Recover indicator
E-45
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause it
to become quite hot. Take care when handling the watch to avoid burn injury.
The watch can become particularly hot when exposed to the following
conditions for long periods.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
E-46
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
Charging Guide
The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
•For details about the battery operating time and daily operating conditions, see the
“Power Supply” section of the Specifications (page E-58).
•Stable operation is promoted by frequent exposure to light.
E-47
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
Approximate Exposure Time
Level 5 Level 4 Level 3 Level 2 Level 1
3 hours 23 hours 7 hours
9 hours 115 hours 31 hours
17 hours 234 hours 63 hours
202 hours - - - - - - - - - - - - - - - -
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
•The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
▲
▲
▲
E-48
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Stopwatch
•You can use lap time measurement to time how long it takes to complete a specific
portion (such as a single lap) of a race.
•You can use split time measurement to time how long it takes to get from the start to
a specific point in a race.
Memory Management
Each time you press D to start a new elapsed time or lap/split operation in the
Stopwatch Mode (page E-17), the watch automatically creates a new “log” in its
memory. The log remains open for data storage until you permanently close it by
pressing B to reset the stopwatch to all zeros.
The watch has enough memory to hold up to 121 records. Each log title screen (start
date and time) and lap/split time uses up one record.
E-49
•A log title screen identifies a single elapsed time operation, from the start up to the
point the stopwatch is reset to all zeros.
•A lap/split time record is stored under a log title screen each time you perform a lap/
split operation.
Example 1
Single elapsed time measurement
Log title screen + 120 lap records = 121 records
Example 2
Multiple elapsed time measurements
Measurement 1 log title screen + 60 lap records = 61 records
Measurement 2 log title screen + 59 lap records = 60 records
• Use the Recall Mode to view stopwatch records (page E-22).
•If watch memory is already full when you perform a stopwatch button operation that
creates a new log, the oldest log in memory and all of its records are deleted
automatically to make room for the new log.
•If you are adding records to the only log in memory and watch memory becomes
full, adding another record causes the oldest record in the log to be deleted
automatically to make room for the new record.
Operation Guide 3425
E-50
•If you are adding records to a log when there are multiple logs in memory and watch
memory becomes full, adding another record causes the oldest log in memory and
all of its records to be deleted automatically to make room for new records.
How Stopwatch Data is Stored
The following table describes how data is stored when you perform the various button
operations described on page E-18.
Stopwatch Button Operation
D Start (from all zeros)
B Stop
D Resume
D Lap/Split
B Reset
Data Store Operation
Creates a new log for the current date. (The log
is updated as timing progresses.)
Time measurement stops, without storing data in
memory.
Time measurement resumes, without storing
data in memory.
Creates new record: displayed lap/split times
Creates new record: displayed lap/split times
(Stopwatch display is reset to all zeros.)
E-51
Button Operation Tone
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
•Even if you turn off the button operation tone, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
Mute indicator
E-52
To turn the button operation tone on and off
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C nine times until the current button operation
tone setting ( or ) appears.
3. Press D to toggle the setting between (tone on)
and (tone off).
4. Press A to exit the setting screen.
•The mute indicator is displayed in all modes when the
button operation tone is turned off.
E-53
Power Saving Function
When turned on, the Power Saving function enters a
sleep state automatically whenever the watch is left in an
area for a certain period where it is dark. The table below
shows how watch functions are affected by the Power
Saving function.
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
Display
Blank, with Power Saving
indicator flashing
Blank, with Power Saving
indicator not flashing
Operation
All functions enabled, except for the
display
Beeper tone, illumination, and display
are disabled.
•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
Power saving indicator
E-54
•The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch
is already in the sleep state when 6:00 AM arrives, however, it will remain in the
sleep state.
To recover from the sleep state
Perform any one of the following operations.
•Move the watch to a well-lit area.
•Press any button.
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C 11 times until the Power Saving on/off screen
appears.
3. Press D to toggle Power Saving on ( ) and off ( ).
4. Press A to exit the setting screen.
•The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
On/Off status
E-55
Auto Return
If you do not perform any operation for about two or three minutes while a setting
screen (with a flashing setting) is on the display, the watch will exit the setting screen
automatically.
Scrolling
The B and D are used in various modes and setting screens to scroll through data
on the display. In most cases, holding down these buttons during a scroll operation
scrolls at high speed.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
E-56
Timekeeping
•Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
•The year can be set in the range of 2000 to 2099.
•The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
•The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Coordinated Universal Time (UTC) for each city,
based on your Home City time setting.
World Time
The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
E-57
Specifications
Accuracy at normal temperature: ±30 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P), year, month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 48 city codes); Standard Time /
Daylight Saving Time (summer time)
Stopwatch: Time measurements
Measuring unit: 1/100 for the first 10 hours, and then 1 second after 10 hours
Measuring capacity: 99:59'59"
Measuring accuracy: ±0.0012%
Measuring modes: Elapsed time, lap/split times
Memory capacity:
121 records (used by lap/split time records and log title screens)
Countdown Timer:
Number of timers: 2 (one set)
Setting unit: 5 seconds
Range: 99 minutes 55 seconds each timer
Countdown unit: 1 second
Number of repeats: 1 to 10
Other: 5-second time up beeper
E-58
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (with 1 snooze alarm); Hourly Time Signal
Illumination: LED (light-emitting diode); Selectable illumination duration
Other: Button operation tone on/off
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 11 months (from full charge to Level 4) under
the following conditions:
•Watch not exposed to light
•Internal timekeeping
•Display on 18 hours per day, sleep state 6 hours per day
•1 illumination operation(1.5 second) per day
•10 seconds of alarm operation per day
Frequent use of illumination runs down the battery.
L-1
City Code Table
Operation Guide 3425
City Code Table
Pago Pago
Honolulu
Anchorage
Vancouver
Los Angeles
Edmonton
Denver
Mexico City
Chicago
New York
Santiago
Halifax
St. Johns
–11
–10
–9
–8
–7
–6
–5
–4
–3.5
PPG
HNL
ANC
YVR
LAX
YEA
DEN
MEX
CHI
NYC
SCL
YHZ
YYT
City UTC Offset/
GMT Differential
City
Code
City UTC Offset/
GMT Differential
City
Code
RIO
FEN
RAI
UTC
LIS
LON
MAD
PAR
ROM
BER
STO
ATH
CAI
JRS
Rio De Janeiro
Fernando de Noronha
Praia
Lisbon
London
Madrid
Paris
Rome
Berlin
Stockholm
Athens
Cairo
Jerusalem
–3
–2
–1
0
+1
+2
L-2 L-3
City UTC Offset/
GMT Differential
City
Code
* The above is current as of June 2013. This watch does not reflect the change in the
Moscow (MOW) time offset to +4. Because of this, you should leave the summer
time setting turned on (which advances the time by one hour) for Moscow (MOW).
•This table shows the city codes of this watch.
•The rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
City UTC Offset/
GMT Differential
City
Code
MOW*
JED
THR
DXB
KBL
KHI
DEL
KTM
DAC
RGN
BKK
Moscow
Jeddah
Te h r a n
Dubai
Kabul
Karachi
Delhi
Kathmandu
Dhaka
Yangon
Bangkok
+3
+3.5
+4
+4.5
+5
+5.5
+5.75
+6
+6.5
+7
SIN
HKG
BJS
TPE
SEL
TYO
ADL
GUM
SYD
NOU
WLG
Singapore
Hong Kong
Beijing
Taipei
Seoul
Toky o
Adelaide
Guam
Sydney
Noumea
Wellington
+8
+9
+9.5
+10
+11
+12
-
1
-
2
-
3
-
4
-
5
-
6
-
7
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